The density is 1g/cm³. To calculate density, the equation density=mass/volume is used. You already know the mass, 27g, but you need the volume. The equation for volume is length x width x height. Plug in your side measure 3, to get 3 x 3 x 3, which is 27cm³. Now, just divide the mass by the volume. 27g/27cm³= 1g/cm³
The least common denominator of 10 and 15 is 30. It's easiest to use trial and error to find the LCD. In this case, just multiply both numbers by 2 and see if that works. Since 15 doesn't go into 20, I tried multiplying 15 by 2 instead, and got 30, which is divisible by 2. If that doesn't work, move on to multiplying them by 3, then 4 four, and so on. However, in this case, it did work, so, since you multiplied 15 by two to get 30, multiply 7 by two to get the fraction 14/30. Then, since you multiplied 10 by 3 to get 30, multiply 2 by 3 to get 6/30. Then, add the two together to get 20/30 and simplify the fraction to 2/3.
2/10 + 7/15 Given.
6/30 + 14/30 LCD.
20/30 Add.
2/3 Simplify.
Answer:
THE FIRST ONE IS -3<1
THE SECOND ONE IS 7.11>-7.1
THE THIRD ONE IS 16 OVER 5
I DON'T KNOW THE LAST TWO SORRY
The solutions for the following expressions are:
1. 0.5*2 = 1
2. -0.2+-0.05= -0.25
3. absolute value of (-3+2.75) = 0.25
4. -(-0.25) = 0.25
5. 2x-1.75x = 0.25x
The expression equivalent to 0.25 is numbers 3 and 4.
Hello :
8000 = 8 ×1000 = 2 ^3 ×10^3 = 20 ^3
note; identity b^3 +a^3 = (a+b) (a²+b² - ab)
in this exercice : b=20
so : 8000+b^3 = (a+20)(a²+400 - 20a).... <span>Factor the following</span>
